kubedge testing

[chicco785]

• deploy microk8s and register pi as kubedge node
• deploy docker container from the scenario on pi using kubedge
• deploy docke mqtt broker on microk8s node

[Solargi]

MicroK8s on Laptop, steps:

• sudo snap install microk8s --classic
• sudo usermod -a -G microk8s $USER
• sudo chown -f -R $USER ~/.kube
• su - $USER
• microk8s status --wait-ready

Kubeedge:
Setup cloud side (laptop masternode):

• docker run --rm kubeedge/installation-package:v1.10.0 cat /usr/local/bin/keadm > /usr/local/bin/keadm && chmod +x /usr/local/bin/keadm
• keadm init --advertise-address="My-laptop-ip"
• keadm gettoken

Setup edgeNode (Pi running Ubuntu Server 22.04.1 LTS 64-bit arm64):

• docker run --rm kubeedge/installation-package:v1.10.0 cat /usr/local/bin/keadm > /usr/local/bin/keadm && chmod +x /usr/local/bin/keadm
• keadm join --cloudcore-ipport=my-laptop-ip:10000 --token=my-cloud-side-token

the output of the last command is the following:
KubeEdge edgecore is running, For logs visit: journalctl -u edgecore.service -xe

but the node didn't join the the cluster as the worker node doesn't show up when running microk8s kubectl get nodes on the laptop

running journalctl -u edgecore.service -xe on the pi reveals the following:

Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.701932 34795 server.go:76] Version: v1.11.1
Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.727867 34795 server.go:103] Use node IP address from config: 192.168.1.115
Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.736222 34795 sql.go:21] Begin to register twin db model
Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.753479 34795 module.go:52] Module twin registered successfully
Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.980657 34795 client.go:78] "Connecting to docker on the dockerEndpoint" endpoint="unix:///var/run/docker.sock"
Sep 29 11:39:47 pim edgecore[34795]: I0929 11:39:47.989949 34795 client.go:97] "Start docker client with request timeout" timeout="0s"
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.607399 34795 docker_service.go:242] "Hairpin mode is set" hairpinMode=hairpin-veth
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.616613 34795 cni.go:239] "Unable to update cni config" err="no networks found in /etc/cni/net.d"
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.693456 34795 hostport_manager.go:72] "The binary conntrack is not installed, this can cause failures in network connection cleanup."
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.693708 34795 hostport_manager.go:72] "The binary conntrack is not installed, this can cause failures in network connection cleanup."
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.771215 34795 docker_service.go:257] "Docker cri networking managed by the network plugin" networkPluginName="kubernetes.io/no-op"
Sep 29 11:39:48 pim edgecore[34795]: I0929 11:39:48.892760 34795 docker_service.go:263] "Docker Info" dockerInfo=&{ID:SGBF:Q2AK:TQEA:DZ6G:M5S7:LEVV:553O:KKRJ:W45Z:3TY4:GI6Q:4LQ3 Containers:0 ContainersRunning:0 Cont>
Sep 29 11:39:48 pim edgecore[34795]: E0929 11:39:48.893016 34795 edged.go:279] init new edged error, misconfiguration: kubelet cgroup driver: "cgroupfs" is different from docker cgroup driver: "systemd"
Sep 29 11:39:48 pim systemd[1]: edgecore.service: Main process exited, code=exited, status=1/FAILURE

░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ An ExecStart= process belonging to unit edgecore.service has exited.
░░
░░ The process' exit code is 'exited' and its exit status is 1.
Sep 29 08:43:10 pi systemd[1]: edgecore.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit edgecore.service has entered the 'failed' state with result 'exit-c>

an other problem is that kubeadm should have created this folder: /etc/kubernetes/pki/ but it doesn't exist